So I had my project in Sonar all spruced up, saved, and ready to export. I save a quick .wav to my SD card to play through another medium to check my mixing, saved one last time, and closed down Sonar because I wouldn't be back anytime soon. When I finally returned, I re-opened the project to make some minor adjustments and came across a major problem. It won't work =\ Everything looks and works fine except for one problem, no playback. The audio engine keeps resetting to "stopped", and clicking play turns it to "start" for a millisecond, then back to stop, and the tracking bar goes nowhere. All the Audio files are in place, everything on the program itself is set right because all my other projects work. Is there something wrong with this particular project file? Is perhaps to much CPU use causing the audio engine to automatically cease to function? When I try to export the song as an audio file I get a "The audio engine unexpectedly stopped" message, and the export aborts. Any help is welcome, please, I don't want to have to redo this all!